A new type of cam clamp

Abstract

A novel cam clamp, belonging to the field of clamping technology, includes a first half-ring and a second half-ring, and further includes: a first fixed seat, a second fixed seat, a long positioning bolt, and a clamping assembly. Two first fixed seats are provided, symmetrically installed on the left and right sides of the first half-ring; two second fixed seats are provided, symmetrically installed on the left and right sides of the second half-ring. This invention uses a cam to drive the first and second half-rings to fasten and connect, offering quick and simple operation without additional steps, meeting the high-efficiency positioning requirements of pipeline maintenance and other operations. The four-corner layout of the four cams ensures balanced force on the first and second half-rings, improving the stability of the connection structure and ensuring reliable and uniform clamping of the pipeline. The resulting multi-directional constraint, combined with the cam's clamping action, enhances the overall structural rigidity of the clamp, reduces the risk of loosening, and guarantees positioning accuracy and clamping reliability.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, specifically relating to a novel cam clamp. Background Technology

[0002] When performing maintenance or other operations on pipelines, clamps are needed to hold the pipeline in place so that the corresponding construction operations can be carried out quickly and effectively.

[0003] A related technology (Chinese patent CN211465327U) discloses an industrial pipe assembly clamp, comprising: a clamping part for clamping a target first industrial pipe, including: a first clamping member, one side of which is arc-shaped for engaging with the target first industrial pipe; a second clamping member, one side of which is arc-shaped for engaging with the target first industrial pipe, and both ends of which are detachably connected to the first clamping member. When connected to both ends of the first clamping member, the arc-shaped side of the first clamping member and the arc-shaped side of the second clamping member clamp the target first industrial pipe; and a fastening part for fastening a second target industrial pipe, including: a first fastener, multiple of which have their upper ends connected to the clamping part and have a threaded hole; and a second fastener, multiple of which engage with the first fastener and have a threaded end disposed in the threaded hole. In use, this invention can improve the accuracy of the alignment between the target first industrial pipe and the target second industrial pipe by adjusting the multiple second fasteners.

[0004] In existing technologies and the solutions described above, pipe clamps are mostly fastened to the outer wall of the pipe with bolts to achieve clamping and positioning. This method has the problem of long operation and positioning time, making it difficult to quickly and efficiently position the outer wall of the pipe, thus restricting the efficient implementation of pipeline maintenance and other operations. Utility Model Content

[0005] Existing pipe clamps typically rely on bolts to secure the pipe to the outer wall for clamping and positioning. This method is time-consuming and hinders efficient pipe positioning, thus limiting the effectiveness of pipe maintenance and other operations. This invention provides a novel cam clamp. By using a cam, a clamping force is applied to corresponding first and second clamps, clamping the corresponding first and second semi-rings against the pipe's outer wall to form a clamp. Compared to traditional bolt-fastening, the cam-driven clamping process is faster and simpler, requiring no additional tightening steps. The reliable connection of the first and second semi-rings is achieved solely through the pressure between the cam's distal side and the pad. This convenient and efficient operation better meets the high-efficiency positioning requirements of pipe maintenance and other operations. The specific technical solution is as follows:

[0006] A novel cam clamp includes a first semi-ring body and a second semi-ring body, and further includes: a first fixed seat, a second fixed seat, a long positioning bolt, and a clamping assembly. Two first fixed seats are provided, symmetrically installed on the left and right sides of the first semi-ring body; two second fixed seats are provided, symmetrically installed on the left and right sides of the second semi-ring body; the long positioning bolt is threaded vertically through the outer walls of the corresponding first and second fixed seats; four sets of clamping assemblies are provided, with each set consisting of two sets located on the side walls of the corresponding first and second fixed seats, for achieving a pressing connection between the first and second fixed seats.

[0007] In the above technical solution, each clamping assembly includes: a first clamp, a pad, a second clamp, a positioning rod, and a nut. The first clamp is located at the corner of the outer wall of the first fixed seat; the pad is fixedly installed on the upper surface of the first clamp; the second clamp is located at the corner of the outer wall of the second fixed seat, and the first clamp and the second clamp are symmetrically arranged downwards; the positioning rod passes through the first clamp, the pad, and the second clamp in a vertical direction, and the bottom end of the positioning rod is provided with an external thread; the nut is threaded onto the bottom end of the positioning rod, and the internal thread of the nut is adapted to the external thread at the bottom end of the positioning rod.

[0008] In the above technical solution, each clamping assembly further includes: a first perforated cylindrical pin, a cam, a first pin, and a handle. The first perforated cylindrical pin is rotatably connected to the top end of the positioning rod and is arranged in the front-back direction. The end of the first perforated cylindrical pin is provided with a hole. The cam is fixedly installed on the first perforated cylindrical pin and is eccentrically arranged relative to the first perforated cylindrical pin. The first pin passes through the hole at the end of the first perforated cylindrical pin. The handle is fixedly installed on the outer side wall of the cam.

[0009] In the above technical solution, the cross-sectional shape of the first semi-ring and the second semi-ring is set to be semi-circular, and the first semi-ring and the second semi-ring are respectively arranged to form a hollow cylindrical positioning space.

[0010] In the above technical solution, the shape of the outer corner of the first fixing seat is adapted to the shape of the inner corner of the first clamp, and the shape of the outer corner of the second fixing seat is adapted to the shape of the inner corner of the second clamp.

[0011] In the above technical solution, the two sets of clamping components corresponding to each other are symmetrically arranged with the horizontal central axis of the first fixing seat as the axis.

[0012] In the above technical solution, a first sealing strip is installed on the inner side wall of the first semi-ring, and a second sealing strip is installed on the inner side wall of the second semi-ring.

[0013] In the above technical solution, the first sealing strip and the second sealing strip are positioned correspondingly and, after being joined together, form an integral annular sealing strip structure.

[0014] In the above technical solution, a first lifting lug is installed on the outer wall of the first semi-ring, and a second lifting lug is installed on the outer wall of the second semi-ring.

[0015] The above technical solution also includes two sets of limiting components, which are symmetrically installed on the right side walls of the first fixed base and the second fixed base. Each set of limiting components includes: a first support plate, a second support plate, a second perforated cylindrical pin, and a second pin. The first support plate is fixedly installed on the right side wall of the first fixed base, and the first support plate has a waist hole in the vertical direction. The second support plate is fixedly installed on the right side wall of the second fixed base, and the second support plate has a waist hole in the vertical direction. The second perforated cylindrical pin passes through the waist hole cavity on the first support plate and the second support plate in the front-back direction, and the end of the second perforated cylindrical pin is provided with a hole. The second pin passes through the hole at the end of the second perforated cylindrical pin.

[0016] The novel cam clamp of this utility model has the following advantages compared with the prior art:

[0017] I. Existing pipe clamps rely on bolts to fasten to the outer wall of the pipe for clamping and positioning, which results in long operation and positioning time, difficulty in quickly and efficiently positioning the pipe outer wall, and thus hinders the efficient execution of pipe maintenance and other operations. This utility model addresses these issues by incorporating a cam that applies pressure to the corresponding first and second clamps, clamping the corresponding first and second semi-rings onto the outer wall of the pipe to form a clamp. Compared to the traditional method of bolting the first and second semi-rings, the cam-driven clamping operation is faster and simpler, requiring no additional tightening steps. The reliable connection of the first and second semi-rings is achieved solely through the pressure between the distal side of the cam and the pad, making the operation convenient and efficient, and better meeting the high-efficiency positioning requirements of pipe maintenance and other operations.

[0018] II. In this utility model, four sets of cams are respectively configured at the four corners of the docking of the first half-ring and the second half-ring. By applying clamping force at four points simultaneously, the two are stably docked. Compared with the single-point clamping and positioning method, this four-point layout can make the first half-ring and the second half-ring form a balanced overall clamping structure, which significantly improves the structural stability after docking, thereby realizing multi-point coordinated clamping and positioning of the pipeline and ensuring the reliability and uniformity of the clamping effect.

[0019] Third, this utility model provides a first support plate, a second support plate, a second perforated cylindrical pin, and a second pin on the side walls of the first and second clamping seats on the right side, respectively, which can form a rigid limit in the front-back direction for the installation of the first and second clamping seats. This limiting structure works in conjunction with the clamping action of the cam, so that the tightly connected first and second half-ring bodies are not only reliably clamped in the left-right direction by the clamping force, but also prevent relative displacement in the front-back direction by the constraint of the limiting components, thereby forming a stable connection in three dimensions. This multi-directional constraint design can effectively improve the overall structural rigidity of the clamp, reduce the risk of loosening under pipeline vibration or external impact, and further ensure the positioning accuracy and clamping reliability of the clamp on the outer wall of the pipeline.

[0020] IV. In this utility model, both the first support plate and the second support plate have a waist hole structure. The second cylindrical pin with a hole can be adjusted vertically along the waist hole, and the second pin is locked at the first and second support plates. This setting ensures that even if there is a certain gap between the first half-ring and the second half-ring, the second cylindrical pin with a hole can still adapt to the relative positional deviation of the two through the adjustment margin of the waist hole, ensuring that the locking function of the first and second support plates in the front and rear directions is not affected. This adjustable limiting structure effectively accommodates the positional errors of the first and second half-rings during the assembly process, avoiding locking failure due to local fitting gaps. It not only ensures the reliability of the front and rear limiting, but also improves the fault tolerance of component assembly, providing a prior guarantee for the first and second half-rings to finally form a stable clamp structure.

[0021] V. In this solution, a nut is installed at the bottom of the positioning rod to lock the second clamp, ensuring that the second clamp maintains a stable vertical locking state at the positioning rod. This ensures that the first half-ring is always in the preset fastened posture. Based on this, only the cam needs to be driven to rotate to press the pad and the first clamp downward, achieving precise docking between the first and second clamps, and finally completing the docking and fastening of the second and first half-rings on the pipeline. This setting eliminates the need for additional positioning operations at the bottom of the positioning rod, which not only simplifies the assembly process and reduces the number of operation steps, but also reduces the risk of alignment deviation during docking by pre-locking the position of the second clamp, thereby improving the overall assembly efficiency and reliability.

[0022] VI. The present invention has a first sealing strip and a second sealing strip respectively provided on the inner side wall of the first half-ring and the second half-ring, which can increase the friction between the clamp and the pipe and promote a tighter connection between the clamp and the pipe.

[0023] In summary, this utility model employs a cam-driven fastening system for the first and second semi-ring bodies, offering quick and easy operation without additional steps, meeting the high-efficiency positioning requirements of pipeline maintenance and other operations. The four-corner layout of the four cams ensures balanced force distribution between the first and second semi-ring bodies, enhancing the stability of the docking structure and ensuring reliable and uniform pipe clamping. The multi-directional constraints formed by the first and second support plates, the second perforated cylindrical pin, and the second pin, combined with the cam's clamping action, enhance the overall structural rigidity of the clamp, reduce the risk of loosening, and guarantee positioning accuracy and clamping reliability. The waist hole design of the first and second support plates and the adjustment function of the second perforated cylindrical pin accommodate assembly position errors, prevent locking failure, ensure front and rear limit reliability, and improve component assembly tolerance. The locking setting of the nut at the bottom of the positioning rod eliminates additional positioning operations, simplifies the process, reduces steps, and lowers the risk of docking deviation, improving assembly efficiency and reliability. All these designs collectively improve the operational efficiency, structural stability, assembly tolerance, and reliability of the pipe clamp, fully meeting the actual needs of pipe clamping and positioning. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first semi-ring structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the first clamp of this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A;

[0027] Figure 4 This is the front view of the cam of this utility model;

[0028] Figure 5 This is a bottom view of the second semi-ring of this utility model;

[0029] Figure 6 This is a right view of the first support plate of this utility model;

[0030] Figures 1 to 6 In the middle, 1. First semi-ring body, 2. First fixed seat, 3. Second semi-ring body, 4. Second fixed seat, 5. Long positioning bolt, 6. First clamp, 7. Pad, 8. Second clamp, 9. Positioning rod, 10. Nut, 11. First cylindrical pin with hole, 12. Cam, 13. First pin, 14. Handle, 15. First support plate, 16. Second support plate, 17. Second cylindrical pin with hole, 18. Second pin, 19. First sealing strip, 20. Second sealing strip, 21. First lifting lug, 22. Second lifting lug. Detailed Implementation

[0031] The following are specific implementation cases and appendices. Figures 1 to 6The present invention will be further described below, but the present invention is not limited to these embodiments.

[0032] A novel cam clamp includes a first semi-ring body 1 and a second semi-ring body 3. Both the first and second semi-ring bodies 1 and 3 have semi-circular cross-sectional shapes, and are vertically aligned to form a hollow cylindrical positioning space. This hollow cylindrical positioning space allows the clamp to lock onto the outer wall of a pipe, facilitating maintenance work after pipe positioning. The clamp also includes a first fixing seat 2, a second fixing seat 4, a long positioning bolt 5, and a clamping assembly. Two first fixing seats 2 are provided, symmetrically installed on the left and right sides of the first semi-ring body 1. Two second fixing seats 4 are also provided. 4. The long positioning bolts 5 are symmetrically installed on the left and right sides of the second half-ring 3. The long positioning bolts 5 are threaded vertically through the outer walls of the corresponding first fixing seats 2 and second fixing seats 4. After the first fixing seats 2 and second fixing seats 4 are assembled, the long positioning bolts 5 threaded vertically through the outer walls of the first fixing seats 2 and second fixing seats 4 can initially limit their movement. This further realizes the positioning constraint of the first half-ring 1 and the second half-ring 3 after initial docking on the outer wall of the pipe, laying the foundation for subsequent precise clamping and positioning. In addition, when the long positioning bolts 5 thread through the outer walls of the first fixing seats 2 and second fixing seats 4, the self-locking property of the threads can lock the first fixing seats 2 and second fixing seats 4. A nut can also be additionally set at the bottom end of the long positioning bolts 5, and the nut is threaded onto the bottom end of the long positioning bolts 5, so that the nut fits against the bottom end of the second fixing seat 4. Both of the above methods can achieve locking after the first fixed seat 2 and the second fixed seat 4 are docked. The corresponding method can be selected as needed to meet the stable positioning requirements of both. There are four sets of clamping components. Each set of two clamping components is set on the side walls of the first fixed seat 2 and the second fixed seat 4, which are used to achieve the pressing connection of the first fixed seat 2 and the second fixed seat 4. The two sets of clamping components corresponding to the front and rear are symmetrically arranged with the horizontal central axis of the first fixed seat 2 as the axis. This ensures that the four sets of clamping components can correspond to the four points of the first half-ring 1 and the first fixed seat 2 respectively, so as to achieve uniform limiting and clamping of the four points after the first half-ring 1 and the second half-ring 3 are docked, and ensure the all-round stability of the clamp after the first half-ring 1 and the second half-ring 3 are assembled.

[0033] For specific main references Figure 1 , Figure 2 , Figures 4 to 6As shown, each clamping assembly includes: a first clamp 6, a pad 7, a second clamp 8, a positioning rod 9, and a nut 10. The first clamp 6 is located at the corner of the outer wall of the first fixed seat 2; the pad 7 is fixedly installed on the upper surface of the first clamp 6; the second clamp 8 is located at the corner of the outer wall of the second fixed seat 4, and the first clamp 6 and the second clamp 8 are symmetrically arranged downwards; the shape of the corner of the outer wall of the first fixed seat 2 matches the shape of the corner of the inner wall of the first clamp 6, and the shape of the corner of the outer wall of the second fixed seat 4 matches the shape of the second clamp 8. The inner wall corners are matched to ensure that when the first clamp 6 is attached to the first fixed seat 2 and the second clamp 8 is attached to the second fixed seat 4, a stable snap-fit ​​positioning can be formed for the first fixed seat 2 and the second fixed seat 4 in the vertical and horizontal directions; the positioning rod 9 passes through the first clamp 6, the pad 7 and the second clamp 8 in the vertical direction, and the bottom end of the positioning rod 9 is provided with an external thread; the nut 10 is threaded on the bottom end of the positioning rod 9, and the internal thread of the nut 10 is matched with the external thread at the bottom end of the positioning rod 9.

[0034] This solution uses a nut 10 at the bottom of the positioning rod 9 to lock the second clamp 8, ensuring the second clamp 8 is vertically stable and the first half-ring 1 is in a pre-set fastened position. Subsequently, simply rotating the cam 12 drives the pad 7 and the first clamp 6 downwards, achieving precise alignment between the first clamp 6 and the second clamp 8, and securing the second half-ring 3 and the first half-ring 1 onto the pipeline. This eliminates the need for additional positioning at the bottom of the positioning rod 9, simplifying the process, reducing steps, reducing alignment deviations, and improving efficiency and reliability.

[0035] Each clamping assembly also includes: a first perforated cylindrical pin 11, a cam 12, a first pin 13, and a handle 14. The first perforated cylindrical pin 11 is rotatably connected to the top end of the positioning rod 9, and the first perforated cylindrical pin 11 is arranged in the front-back direction. The end of the first perforated cylindrical pin 11 is provided with a hole. The cam 12 is fixedly installed on the first perforated cylindrical pin 11, and the cam 12 is eccentrically set relative to the first perforated cylindrical pin 11. The first pin 13 passes through the hole at the end of the first perforated cylindrical pin 11. The handle 14 is fixedly installed on the outer side wall of the cam 12.

[0036] The cam 12 of this invention applies a clamping force to the corresponding first clamp 6 and second clamp 8, clamping the corresponding first half-ring 1 and second half-ring 3 against the outer wall of the pipe to form a clamp. Compared with the traditional method of using bolts to fasten the first half-ring 1 and second half-ring 3, the operation of the cam 12 driving the two to fasten and connect is faster and simpler. No additional fastening process is required. The reliable fastening connection of the first half-ring 1 and second half-ring 3 can be achieved solely by the pressure between the distal side of the cam 12 and the pad 7. The operation is efficient and convenient, and can better meet the needs of pipeline maintenance and other operations for efficient positioning.

[0037] Furthermore, this invention features a set of cams 12 at each of the four corners where the first semi-ring 1 and the second semi-ring 3 meet, achieving stable connection through synchronized force application at four points. Compared to single-point clamping, this four-corner layout allows the first semi-ring 1 and the second semi-ring 3 to form a balanced overall clamping structure, significantly improving the structural stability after connection. This enables multi-point coordinated clamping of the pipeline, ensuring a reliable and uniform clamping effect.

[0038] Main references Figure 1 and Figure 4 As shown, a first sealing strip 19 is installed on the inner wall of the first semi-ring 1, and a second sealing strip 20 is installed on the inner wall of the second semi-ring 3. The first sealing strip 19 and the second sealing strip 20 are positioned correspondingly and, after being joined, form an integral annular sealing strip structure. The present invention configures the first sealing strip 19 and the second sealing strip 20 on the inner walls of the first semi-ring 1 and the second semi-ring 3 respectively, which can effectively increase the contact friction between the clamp and the outer wall of the pipe, thereby enhancing the tightness of the fit between the clamp and the pipe, and making the two form a more stable connection.

[0039] In addition, a first lifting lug 21 is installed on the outer wall of the first semi-ring 1, and a second lifting lug 22 is installed on the outer wall of the second semi-ring 3. The first lifting lug 21 and the second lifting lug 22 are commercially available mature models of lifting lugs. When used in conjunction with existing lifting devices, this clamp can be clamped and positioned on the outer wall of the pipe for lifting, so as to meet the needs of other pipe lifting and maintenance sites.

[0040] Main references Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, this solution also includes two sets of limiting components, which are symmetrically installed on the right side walls of the first fixed base 2 and the second fixed base 4. Each set of limiting components includes: a first support plate 15, a second support plate 16, a second perforated cylindrical pin 17, and a second pin 18. The first support plate 15 is fixedly installed on the right side wall of the first fixed base 2, and the first support plate 15 has a waist hole in the vertical direction. The second support plate 16 is fixedly installed on the right side wall of the second fixed base 4, and the second support plate 16 has a waist hole in the vertical direction. The second perforated cylindrical pin 17 penetrates the waist hole cavity on the first support plate 15 and the second support plate 16 in the front-back direction, and the end of the second perforated cylindrical pin 17 is provided with a hole. The second pin 18 penetrates the hole at the end of the second perforated cylindrical pin 17.

[0041] This invention features a first support plate 15, a second support plate 16, a second perforated cylindrical pin 17, and a second pin 18 respectively on the side walls of the first clamping seat 6 and the second clamping seat 8 on the right side. These components provide rigid front-to-back positioning for the installation of the first clamping seat 6 and the second clamping seat 8. This positioning structure, in conjunction with the clamping action of the cam 12, ensures that the tightly joined first and second semi-ring bodies 1 and 3 are reliably clamped not only in the left-to-right direction by the clamping force but also in the front-to-back direction by the constraint of the positioning components, thus preventing relative displacement and forming a stable three-dimensional connection. This multi-directional constraint design effectively enhances the overall structural rigidity of the clamp, reduces the risk of loosening caused by pipeline vibration or external impact, and further ensures the positioning accuracy and clamping reliability of the clamp on the outer wall of the pipeline.

[0042] In this scheme, the first half-ring 1 and the second half-ring 3 are clamped together by the cam 12. Without additional positioning structures, the relative position of the cam 12 and the pad 7 must meet the following conditions: the pressure angle of the contact point between the distal side of the cam 12 and the pad 7 is less than or equal to the friction angle to achieve self-locking and prevent the clamping force from loosening; the normal of the pressing surface of the cam 12 at the contact point is perpendicular to the tangent of the pressed surface of the pad 7, and the perpendicularity deviation is controlled within the design tolerance to avoid offset caused by lateral force; the eccentricity of the cam 12 must ensure that the stroke of the distal side covers the dimensional tolerance of the pad 7, and the contact point is in the non-abrupt section of the contour curve to ensure uniform transmission of clamping force; at the same time, the angle between the tangent direction of the contact point and the resultant force direction of the external force on the pad 7 is ≥30° to enhance dynamic stability. The above parameters work together to ensure reliable positioning of the cam 12 on the pad 7. The above parameter settings are flexibly set according to existing technology, which can satisfy the purpose of automatically achieving a stable and tight connection between the two when the distal side of the cam 12 clamps the pad 7. The above parameters are not elaborated here and other parameter limitations are not specified.

[0043] The working principle of this novel cam clamp in this embodiment is as follows:

[0044] The first half-ring 1 and the second half-ring 3 are placed on the upper and lower sides of the pipe respectively, so that the first sealing strip 19 and the second sealing strip 20 are in contact with the outer wall of the pipe. After the first fixing seat 2 and the second fixing seat 4 are assembled accordingly, the long positioning bolt 5 is threaded through the outer wall of the first fixing seat 2 and the second fixing seat 4 in the vertical direction to achieve the initial positioning of the two, thereby completing the positioning constraint of the first half-ring 1 and the second half-ring 3 after the initial docking on the outer wall of the pipe.

[0045] Four sets of components, including the first clamp 6, the second clamp 8, the positioning rod 9, and the cam 12, are respectively assembled at the first fixed seat 2 and the second fixed seat 4, so that the first clamp 6 fits against the side wall corner of the first fixed seat 2, and the second clamp 8 fits against the side wall corner of the second fixed seat 4. Based on the eccentric setting of the cam 12 relative to the first perforated cylindrical pin 11, the first perforated cylindrical pin 11 and the cam 12 are driven by the drive handle 14 to rotate synchronously around the top end of the positioning rod 9 until the distal side of the cam 12 is completely in contact with the upper surface of the pad 7. At this time, the cam 12 exerts downward pressure on the pad 7, driving the first clamp 6 to move downward along the positioning rod 9 and tightly clamp itself against the side wall corner of the first fixed seat 2. With the second clamp 8 fitting and positioning itself against the side wall corner of the second fixed seat 4, the first clamp 6 and the second clamp 8 press and fix the first fixed seat 2 and the second fixed seat 4, and finally complete the tight docking and clamping positioning of the first half-ring 1 and the second half-ring 3 on the outer wall of the pipe.

[0046] To further ensure the stability between the first fixed seat 2 and the second fixed seat 4 after positioning, the second perforated cylindrical pin 17 can be inserted through the waist hole on the outer wall of the first support plate 15 and the second support plate 16, and the second pin 18 can be inserted through the hole on the second perforated cylindrical pin 17 to achieve locking after the second perforated cylindrical pin 17 passes through the inner cavity of the first support plate 15 and the second support plate 16. In this state, the first fixed seat 2 and the second fixed seat 4 can be further locked and limited in the front and rear directions by the second perforated cylindrical pin 17, and the first half-ring 1 and the second half-ring 3 can be further locked behind the outer wall of the pipe.

[0047] This utility model uses cams 12 to drive the first half-ring 1 and the second half-ring 3 for fastening and docking. The operation is quick and simple, requiring no additional procedures, and can meet the high-efficiency positioning requirements of pipeline maintenance and other operations. The four-corner layout of the four sets of cams 12 ensures balanced force on the first half-ring 1 and the second half-ring 3, improving the stability of the docking structure and ensuring reliable and uniform clamping effect on the pipeline. The multi-directional constraint formed by the first support plate 15, the second support plate 16, the second perforated cylindrical pin 17, and the second pin 18, combined with the pressing action of the cams 12, enhances the overall structural rigidity of the clamp, reduces the risk of loosening, and ensures... Positioning accuracy and clamping reliability; the waist hole design of the first support plate 15 and the second support plate 16 and the adjustment function of the second perforated cylindrical pin 17 are compatible with assembly position errors, avoid locking failure, ensure the reliability of front and rear limit positions and improve the assembly tolerance of components; the locking setting of the bottom nut 10 of the positioning rod 9 eliminates the need for additional positioning operations, simplifies the process, reduces steps, and reduces the risk of docking deviation, thereby improving assembly efficiency and reliability; the above designs together improve the operating efficiency, structural stability, assembly tolerance and reliability of the pipe clamp, fully meeting the actual needs of pipe clamping and positioning.

[0048] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0049] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0050] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0051] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0052] Unless otherwise stated, the term "multiple" means two or more.

[0053] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0054] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel cam clamp, comprising a first semi-ring (1) and a second semi-ring (3), characterized in that: Also includes: The first fixing seat (2) is provided in two, and the two first fixing seats (2) are respectively symmetrically installed on the left and right sides of the first semi-ring (1); The second fixing seat (4) is provided in two, and the two second fixing seats (4) are symmetrically installed on the left and right sides of the second semi-ring (3); Long positioning bolt (5), the long positioning bolt (5) is threaded through the outer wall of the first fixing seat (2) and the second fixing seat (4) corresponding to the upper and lower parts in the vertical direction; The clamping assembly is provided in four sets, with each set of two clamping assemblies being a group located on the side walls of the first fixed seat (2) and the second fixed seat (4) corresponding to each other, for the purpose of achieving a pressing connection between the first fixed seat (2) and the second fixed seat (4).

2. The novel cam clamp according to claim 1, characterized in that: Each set of clamping components includes: The first clamp (6) is located at the corner of the outer wall of the first fixed seat (2); Pad (7), the pad (7) is fixedly installed on the upper surface of the first clamp (6); The second clamp (8) is located at the corner of the outer wall of the second fixed seat (4), and the first clamp (6) and the second clamp (8) are arranged symmetrically downwards; The positioning rod (9) passes through the first clamp (6), the pad (7) and the second clamp (8) in a vertical direction, and the bottom end of the positioning rod (9) is provided with an external thread; Nut (10), the nut (10) is threadedly fitted onto the bottom end of the positioning rod (9), and the internal thread of the nut (10) is adapted to the external thread at the bottom end of the positioning rod (9).

3. The novel cam clamp according to claim 2, characterized in that: Each set of clamping components also includes: The first perforated cylindrical pin (11) is rotatably connected to the top end of the positioning rod (9), and the first perforated cylindrical pin (11) is arranged in the front-back direction, and the end of the first perforated cylindrical pin (11) is provided with a hole. Cam (12), the cam (12) is fixedly installed on the first perforated cylindrical pin (11), and the cam (12) is eccentrically arranged relative to the first perforated cylindrical pin (11); The first pin (13) passes through the hole at the end of the first perforated cylindrical pin (11); Handle (14), which is fixedly installed on the outer wall of the cam (12).

4. The novel cam clamp according to claim 1, characterized in that: The cross-sectional shape of the first semi-ring (1) and the second semi-ring (3) is set to be semi-circular, and the first semi-ring (1) and the second semi-ring (3) are respectively arranged to form a hollow cylindrical positioning space.

5. A novel cam clamp according to claim 2, characterized in that: The shape of the outer corner of the first fixing seat (2) is adapted to the shape of the inner corner of the first clamp (6), and the shape of the outer corner of the second fixing seat (4) is adapted to the shape of the inner corner of the second clamp (8).

6. A novel cam clamp according to claim 1, characterized in that: The two sets of clamping components, corresponding to each other, are symmetrically arranged with the horizontal central axis of the first fixing seat (2) as the axis.

7. A novel cam clamp according to claim 1, characterized in that: The first semi-ring (1) is equipped with a first sealing strip (19) on its inner side wall, and the second semi-ring (3) is equipped with a second sealing strip (20) on its inner side wall.

8. A novel cam clamp according to claim 7, characterized in that: The first sealing strip (19) and the second sealing strip (20) are positioned correspondingly and, after being joined together, form an integral annular sealing strip structure.

9. A novel cam clamp according to claim 1, characterized in that: The first half-ring (1) is equipped with a first lifting lug (21) on its outer side wall, and the second half-ring (3) is equipped with a second lifting lug (22) on its outer side wall.

10. A novel cam clamp according to claim 1, characterized in that: It also includes two sets of limiting components, which are symmetrically installed on the right side walls of the first fixing seat (2) and the second fixing seat (4). Each set of limiting components includes: The first support plate (15) is fixedly installed on the right side wall of the first fixed seat (2), and the first support plate (15) has a waist hole in the vertical direction. The second support plate (16) is fixedly installed on the right side wall of the second fixed seat (4), and the second support plate (16) has a waist hole in the vertical direction; The second perforated cylindrical pin (17) passes through the inner cavity of the waist hole on the first support plate (15) and the second support plate (16) in the front-back direction, and the end of the second perforated cylindrical pin (17) is provided with a hole. The second pin (18) passes through the hole at the end of the second perforated cylindrical pin (17).

Images